bowker



(No Model.)

L. E. BOWKER.

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UNITED STATES PATENT rErcE.

LEO E. BOWVKER, OF \VINOHESTER, NEW HAMPSHIRE, ASSIGNOR TO THE ASHUELO'I CAN COMPANY, OF SAME PLACE.

BUNG.

SPECIPiCATION forming part of Letters Patent No. ssasse, dated March 1,1887.

Application filed November 4, 1880. Serial No. 218,025. (No model.)

To all whom it may concern:

Be it known that I, LEO E. BOWKER, a citizen of the United States, residing at WVin-' chester, in the county of Cheshire and State of New Hampshire, have invented certain new and useful Improvements in Barrel -Bungs; and I do declare the following tobe a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying draw ings, and to the letters and figures of reference marked thereon, which form a part of this specification.

The objects of my invention are, first, to produce a bung or filler which can be easily closed air-tight and readily opened so as to give vent to the barrel or can while drawing liquids therefrom; second, to give airveut to the vessel while filling the same with the aid ofa funnel. I attain these objects by the mechanism illus trated in the following drawings, in which- Figure 1 is a perspective view of the bushing or casing of the bung,showing the screwthreads for inserting the same into the barrelstave or head of the can, and for screwing on the cap or cover, and also showing the vent for filling. Fig. 2is a perspective view of the cap or cover, which is provided with ascrewthread on the inside of the rim for the purpose of screwing the same on the upper portion of the bushing. Fig. 3 is a vertical section of the bung or filler, showing its several parts.

The bushing B is made of brass or other suitable metal,and is provided with a screwthread on the outer circumference for the double purpose, first, of confining it in the stave or head of the vessel, and, second, for screwing on the cap or cover 0.

On the inside of the upper rim of the bushing B is a flange or projection, f. This flange extends around the inner rim of the bushing three-fourths its entire circumference. It is made of a desired width at its central part, and gradually diminishes therefrom on both sides until it is merged in the Wall or side of the bushing, thus leaving a nonconcentric circular opening of less diameter than that of the bushing for the insertion of the funnel.

'lhrough the widest part or central portion of the flange f is made a hole or vent, 71. When the funnel is inserted into the opening of the bushing, the hole It furnishes a perfect vent for the vessel while the same is being filled. The flange f is placed even or on a level with the upper face of the rim of the bushing, so that the inner surface of the cap 0 rests thereon and forms a perfectly-tight joint when the cap is screwed down. The cap 0 is also perforated with the vent c. When the cap is screwed down upon the bushing, the vent e is removed past or beyond the vent h, and the inner surface of the cap coming in contact with the upper face of the rim of the bushing a perfect joint is obtained.

When it is desired to give the vessel or can vent while drawing liquids therefrom, the cap 0 is turned backward a little,so that the vent 1) will stand directly over the vent h, andthus a perfect air'vent is obtained. The vent is closed byturning the capO back to its former position.

' Two or more holes may be made in the flange f, if desired, to increase the vent for filling the vessel, or an elongated slot may be cut through the same to increase the size of the vent.

Having described my invention, I claim- 1. A. barrel-bung composed of a cylindrical bushing having a perforated flange, f, projecting from the inside of the upper rim of the same, and a cap or cover perforated with 'a hole on a line with the hole in the flange, substantially as and for the purposes set forth.

2. The combination,in a barrel-bung, of the bushing B, having an inner flange, f, and vent h, with a cap or cover, 0, provided with the vent 11, substantially as and for the purposes described.

3. In a barrel-bung, the bushing B, having a flange, f, which is perforated at its central or widest part with a hole for the purpose of giving air-vent while filling the can or vessel, substantially asset forth.

In testimony whereof I afiix my signature in presence of two witnesses.

LEO E. BOIVKER.

Witnesses:

HIRAM BLAKE, O. W. WALKER. 

